SUN HYDRAULICS
DMDAXRN228

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DMDAXRN228 (DMDAXRN228) is a high-performance, solenoid-operated 3-way, 2-position cartridge valve designed for precise hydraulic control. This direct-acting, balanced spool directional valve is notably robust, featuring a fatigue rating of 5000 psi (350 bar) for the solenoid tube assembly, making it suitable for demanding applications. The valve exhibits closed transitions between its two positions with spools B and R, enhancing performance by ensuring faster and more consistent response times especially when used as pilot controls. The DMDAXRN228 operates without any minimum hydraulic pressure requirement and incorporates a wet armature design where the working fluid surrounds the armature. This design consideration is crucial as it affects the temperature of the fluid if the coil remains energized over extended periods. The valve\u2019s compatibility with EPDM seals makes it ideal for systems using phosphate ester fluids while cautioning against exposure to petroleum-based fluids which can damage these seals. Additionally, this model supports interchangeable coils with other Sun Series 1 solenoid products and can be mounted in either direction on the tube. It also benefits from Sun's floating style construction which minimizes internal parts binding due to installation torque or cavity/cartridge machining variations. Key specifications include a maximum operating pressure of 5000 psi (350 bar), flow capacity up to 12 gpm (45 L/min), and typical response time of 50 ms. The manual override feature requires a minimal force and provides a temporary actuation mechanism that is not intended for long-term use but useful for system checks and maintenance. With its compact size and lightweight design (.60 lb or 0.30 kg), this valve offers an efficient solution for various hydraulic control applications requiring high reliability and precision.